XML 48 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Basis of Presentation - Basis of Presentation (Details) - Orbotech $ / shares in Units, $ in Billions | Mar. 18, 2018 USD ($) $ / shares shares
--- | ---
Business Acquisition |
Merger agreement, share price (in dollars per share) | $ / shares | $ 38.86
Merger agreement, entity shares issues per acquiree share (in shares) | shares | 0.25
Merger agreement, enterprise value | $ | $ 3.2

X
- Definition Business Combination, Consideration To Be Transferred Upon Completion Of Merger, Equity Interests Issued and Issuable, Entity Shares Issued Per Acquiree Share + References No definition available. + Details
Name: | klac_BusinessCombinationConsiderationToBeTransferredUponCompletionOfMergerEquityInterestsIssuedandIssuableEntitySharesIssuedPerAcquireeShare
Namespace Prefix: | klac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Combination, Enterprise Value + References No definition available. + Details
Name: | klac_BusinessCombinationEnterpriseValue
Namespace Prefix: | klac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=klac_OrbotechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |